I had a version of the semi-dry from nookie, it was excellent and I still have it. Though now it is really old at nine years and in need of repair.
Generally people buy gear in bits. A good deck, Long john wetsuit, Cag, booties, Helmet, b/aid, blades and boat. Sort of in that order. I went helemt, booties, wetsuit, cag, deck, B/aid, paddles and boat. Then the next time I got drypants and dry cag together. Some people swear by dry gear to stay warm and that is another step up in price.
I would also recomend seeing what gear our local shops have before going to internet I-canoe or GODs sometimes they have sales, I-canoe has one at present.
Also remember some brands are better than others in quality and durabilty so I suggest looking at Playak.com for comparisons also irishfreestyle and search this site for gear as well as this topic has been done before.